Given:
The figure of a quadrilateral ABCD.
To find:
The supplement of angle ABC.
Solution:
We know that, two angles are called supplementary angles if their sum is 180 degrees.


So,
is not a supplement of
.


So,
is not a supplement of
.



So,
is a supplement of
.
In the same way
.
So,
is not a supplement of
.
Therefore, the correct option is C.